FRDB Archives

Freethought & Rationalism Archive

The archives are read only.


Go Back   FRDB Archives > Science & Skepticism > Evolution/Creation
Welcome, Peter Kirby.
You last visited: Yesterday at 03:12 PM

 
 
Thread Tools Search this Thread
Old 08-24-2004, 09:54 AM   #11
BDS
Veteran Member
 
Join Date: Jul 2003
Location: Eugene, OR, USA
Posts: 3,187
Default

I assume that everyone knows this, but genes don't "want" to maximize their own propogation." (Ms. Siv) Nor do they "seek" to do so. Words like "want" and "seek" are personifying metaphors.
BDS is offline  
Old 08-24-2004, 01:35 PM   #12
Banned
 
Join Date: Aug 2003
Location: Arizona
Posts: 20,817
Default

Quote:
Originally Posted by Graculus
"Left turn now" time.

Chaos isn't random, and it applies to those organisms that are manipulatiing their environment as well as those that don't.

Chaos has to be more widely misunderstood than evolution...
I will agree that my understanding of "chaos" is not great, but randomness, or the appearance of randomness is a defining quality of chaos.
Hooboy !! is offline  
Old 08-24-2004, 01:48 PM   #13
Banned
 
Join Date: Aug 2003
Location: Arizona
Posts: 20,817
Default

Quote:
Originally Posted by Rhaedas
if wisdom is "good decision making", then selection isn't wise at all. Yes, what works can get selected, but as many of the ID counter arguments show, they aren't always the best decisions, hence there's no sign of any intelligence behind them.
Words like "best" are subjective and entirely meaningless from a macro perspective. Returning to the criteria that defines what is "wise", time becomes the delimiting factor. There are after all many ways to solve any given problem. Over time, one solution usually rises above the others and becomes the defacto "best" way. In natural selection, random events are just as responsible for determining what does and does not survive. No amount of adaptation will prepare an organism for being struck by a meteor for example. It took a tremendous amount of time for a peacock to evolve, but is it the "best" design for a bird? I mean, what are those feathers good for any way? (rhetorical) Ask me again in a million years. If the peacock is still around, you will have your answer. None of this implies an intelligence. It is just a stratification process, sifting through the millions if not billions of various mutations in any given generation. Species come and go. Some faster than others.

Quote:
If we argue words, I'd even say that "decision" is a bad one, because it also implies something choosing a path. So does "selection". The simple fact is, an organism has traits, some handed down without change, some modified. The traits either help, hinder, or do nothing. If they get passed down to another generation, and it's due in part to that trait, we personify it as a "selection" of that trait. But there's no selection, decision, or wisdom...it just worked.
Too much energy goes into looking at a particular species or individual organisms.

Life on this planet continues to exist, even after several mass extinctions. That is impressive. That cockroaches and alligators remain virtually the same after millions of years is much less impressive.

The wisdom of natural selection is most evident in life's diversity and it's ability to sustain it's self.
Hooboy !! is offline  
Old 08-24-2004, 02:04 PM   #14
RBH
Contributor
 
Join Date: Aug 2002
Location: Ohio
Posts: 15,407
Default

Hoobou wrote
Quote:
I will agree that my understanding of "chaos" is not great, but randomness, or the appearance of randomness is a defining quality of chaos.
The defining property of chaos is sensitive dependence on initial conditions. Chaotic phenomena, e.g., a chaotic time series, often pass most statistical tests for randomness, but that's not their defining property.

RBH
RBH is offline  
Old 08-25-2004, 07:51 AM   #15
Banned
 
Join Date: Aug 2003
Location: Arizona
Posts: 20,817
Default

Quote:
Originally Posted by RBH
Hoobou wroteThe defining property of chaos is sensitive dependence on initial conditions. Chaotic phenomena, e.g., a chaotic time series, often pass most statistical tests for randomness, but that's not their defining property.

RBH
Ugh!

That stuff hurts my head. I read a book some time back on fuzzy logic, because I was interested in AI, but I have never been able to wrap my head around chaos theory.
Hooboy !! is offline  
Old 08-25-2004, 08:46 AM   #16
Veteran Member
 
Join Date: Apr 2001
Location: Canada
Posts: 5,504
Post

Quote:
Hooboy !!:
Words like "best" are subjective and entirely meaningless from a macro perspective.
I don't know what you mean by "a macro perspective," but I doubt that I can agree with you here.
Quote:
Returning to the criteria that defines what is "wise", time becomes the delimiting factor. There are after all many ways to solve any given problem. Over time, one solution usually rises above the others and becomes the defacto "best" way. In natural selection, random events are just as responsible for determining what does and does not survive.
That is quite an assertion. Natural selection, by definition, is non-random. In some cases natural selection will be the only factor determining survival, in some cases it will be the dominant factor, in some cases it will be an equal factor, in some cases it will be a minor factor, and in some cases it will not be involved at all. So what?
Quote:
No amount of adaptation will prepare an organism for being struck by a meteor for example.
Natural selection does not care about individuals, it cares about average reproductive success with a particular trait. That being said, random events can certainly be important in evolution. Is there anyone who denies this?
Quote:
It took a tremendous amount of time for a peacock to evolve, but is it the "best" design for a bird?
That depends on how one defines "best."
Quote:
I mean, what are those feathers good for any way? (rhetorical)
Reproductive success. (rhetorical)
Quote:
Ask me again in a million years. If the peacock is still around, you will have your answer.
Are you suggesting that the peacock will be extinct in the next million years? It may well be, but it is no more likely than many other species of birds.
Quote:
None of this implies an intelligence.
Agreed.
Quote:
It is just a stratification process, sifting through the millions if not billions of various mutations in any given generation. Species come and go. Some faster than others.
Yup.
Quote:
Too much energy goes into looking at a particular species or individual organisms.
Why do you say that?
Quote:
Life on this planet continues to exist, even after several mass extinctions. That is impressive.
:huh: I don't see this as particularly surprising. All life going extinct would be much more impressive.
Quote:
That cockroaches and alligators remain virtually the same after millions of years is much less impressive.
I find neither particularly impressive.
Quote:
The wisdom of natural selection is most evident in life's diversity and it's ability to sustain it's self.
I see no wisdom whatsoever in natural selection. The vast majority of species have gone extinct, and the vast, vast, vast majority of living things have died. If you produce enough organisms, a few are bound to survive. So what?

Peez
Peez is offline  
 

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump


All times are GMT -8. The time now is 05:42 PM.

Top

This custom BB emulates vBulletin® Version 3.8.2
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.